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Finding the Fourth Proportional to 351,486.52, 527,120.70 and 126,817.75

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Solution

The fourth proportional to 351,486.52, 527,120.70 and 126,817.75 is: 190,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,486.52 : 527,120.70 = 126,817.75 : x
  2. Step 2: Convert to fraction form
    351,486.52/527,120.70 = 126,817.75/x
  3. Step 3: Cross multiply
    351,486.52x = 527,120.70 × 126,817.75
  4. Step 4: Simplify right side
    351,486.52x = 66,848,261,152.43
  5. Step 5: Solve for x
    x = 66,848,261,152.43/351,486.52
  6. Step 6: Final answer
    x = 190,187.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.